<template>
  <el-table-column
    :prop="item.prop"
    :label="item.label"
    :type="item.type"
    :align="item.align || 'center'"
  >
    <template v-for="(val, index) of item.children">
      <t-table-column v-if="val.children" :key="index" :item="val"></t-table-column>
      <el-table-column
        v-else
        :key="val.prop"
        :prop="val.prop"
        :label="val.label"
        :min-width="val['min-width'] || val.minWidth || val.width"
        :sortable="val.sort"
        :render-header="val.renderHeader||(val.headerRequired&&renderHeader)"
        :align="val.align || 'center'"
        :show-overflow-tooltip="val.noShowTip"
        v-bind="{...val.bind,...$attrs}"
        v-on="$listeners"
      >
        <template slot-scope="scope">
          <!-- render渲染 -->
          <template v-if="val.render">
            <render-col :column="val" :row="val.row" :render="val.render" :index="scope.$index" />
          </template>
          <!-- customRender渲染 -->
          <template v-if="val.customRender">
            <OptComponent
              v-for="(comp, i) in val.customRender.comps"
              :key="scope.$index + i.toString()"
              v-bind="comp"
              :scope="scope"
            />
          </template>
          <!-- 自定义插槽 -->
          <template v-if="val.slotName">
            <slot :name="val.slotName" :param="scope"></slot>
          </template>
          <!-- 单个单元格编辑 -->
          <template v-if="val.canEdit">
            <single-edit-cell
              :canEdit="val.canEdit"
              :configEdit="val.configEdit"
              v-model="scope.row[scope.column.property]"
              :prop="val.prop"
              :record="scope"
              @handleEvent="(event,model) => $emit('handleEvent',event,model,scope.$index)"
              v-bind="$attrs"
              ref="editCell"
            >
              <slot
                v-if="val.configEdit&&val.configEdit.editSlotName"
                :name="val.configEdit.editSlotName"
                :scope="scope"
              />
            </single-edit-cell>
          </template>
          <div
            v-if="!val.render&&!val.slotName&&!val.customRender&&!val.canEdit"
          >{{scope.row[val.prop]}}
          </div>
        </template>
      </el-table-column>
    </template>
  </el-table-column>
</template>

<script>
import SingleEditCell from './singleEditCell.vue'
import OptComponent from './OptComponent.vue'
import RenderCol from './renderCol.vue'
export default {
  name: 'TTableColumn',
  components: {
    SingleEditCell,
    OptComponent,
    RenderCol
  },
  props: {
    // 每列的数据
    item: {
      type: Object,
      default: () => {
        return {}
      },
      required: true
    }
  },
  methods: {
    // 头部标题是否需要加头部必填*符号
    renderHeader (h, { column }) {
      const style = {
        color: '#F56C6C',
        fontSize: '16px',
        marginRight: '3px'
      }
      // 头部标题是否需要加头部必填*符号
      return (
        <div style="display: inline">
          <span style={style}>*</span>
          <span>{column.label}</span>
        </div>
      )
    }
  }
}
</script>
